'use strict';

const hash = {
    first: 7,
    second: 10,
    third: 1,
    fourth: 5,
};

hash.fifth = 2;

for ( const key in hash ) {
    const value = hash[key];
    console.log (
        key, '\t', typeof key, '\t',
        value, '\t', typeof value
    );
}
